2022英语周报河南初一答案

第一节图,男ble version:Dear allenHow are you doing? I'm writing to invite you to a lecture on Chinese calligraphy, which will be held by ourschool's calligraphy club next Monday afternoon in the school library. In China calligraphy is not only a means ofcommunication, but also a means of expressing a persons inner world.The lecture will last from 2 pm to 5 pm. The lecturer, who is from Peking University, will mainly talkabout the development of Chinese calligraphyYours sincerely.

7.答案:C解析:不妨设双曲线的一条渐近线方程为y=-x,所以+bc,所以b2,得c=2a,所以双曲线的离心率2故选C.

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